JPH0437908B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a traffic control door at the entrance/exit of a specific surveillance area, and particularly to a traffic control door that has a simple configuration and can reliably prevent simultaneous passage of outsiders.

[Prior art]

In general, traffic may be controlled to prevent unauthorized persons from entering specified surveillance areas such as computer centers, safes, power generation and substations, etc.
In this case, a traffic control door is installed at the entrance to the specific area, and conventionally, this type of traffic control door has an ID discriminator installed near the front of the door, and the door is unlocked based on the identification result of the ID discriminator. Or, by keeping it locked, the traffic of passersby was controlled. In this traffic control door, when the door is unlocked based on the half-separation result of the ID discriminator, at the same time as the person whose ID has been discriminated passes, the door takes advantage of the passage of the passerby who is the said person. There was a risk that outsiders could intrude.

Furthermore, in order to reliably prevent the passage of outsiders other than the person whose ID has been determined, conventional traffic control doors are provided with two doors facing each other at the entrance and exit, and a gate is formed between the two doors. In a closed space where
In some cases, traffic was controlled by determining that the ID belonged only to the person in question.

However, after performing ID discrimination in the closed space, the two doors are operated and controlled separately, which requires a lot of time and effort for the equipment for each door before and after ID discrimination. The mechanism was becoming complex. Furthermore, since the closed space is formed by two separate and independent doors, there is a drawback that the installation space becomes large.

[Summary of the invention]

The present invention has been made in view of the above points, and includes a revolving door having a plurality of wings arranged radially from a central axis at an entrance/exit, and a closed space formed by the plurality of wings. By performing ID discrimination at the entrance/exit outside the space and controlling the rotation of the revolving door based on the result of this ID discrimination to control the passage through the entrance/exit, the door control mechanism can be simplified and the installation space can be reduced. We propose a traffic control door.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1a, b, c,
d, will be explained based on FIGS. 2, 3, 4, 5, and 6. Fig. 1a is a front view of the traffic control door according to this embodiment, and Fig. 1b is A- of Fig. 1a.
A sectional view, Figure 1c is an installation diagram of the electromagnetic lock of the revolving door shown in Figure 1a, and Figure 1d is the B-B of Figure 1c.
2 is a general block diagram of this embodiment, Figure 3 is a circuit diagram of the entrance (or exit) door control circuit, Figure 4 is a block diagram of the ID discriminator, and Figure 5 is a lock diagram. A circuit diagram of the control circuit and a circuit diagram of the traffic display circuit are shown in FIG.

In each of the above figures, the traffic control door according to the present embodiment includes an entry button 3 provided on the outside of the entrance/exit 2 of the specific monitoring area 1, an exit button 4 provided on the inside, and an opening 21 of the entrance/exit 2. The central axis 51
The revolving door 5 has a plurality of wings 52, 52 disposed therein, and each discriminating means provided inside and outside the closed space 22 formed by the plurality of wings 52, 52 and the inner wall of the opening 21. ID discriminator 6,
A door control circuit 7 that controls the rotation of the revolving door 5 based on the determination result of the ID discriminator 6; and a lock control circuit that locks or unlocks the revolving door 5 based on the output of the door control circuit 7. 8, and a traffic display circuit 9 that displays the traffic status based on the output of the door control circuit 7.

The entry button 3 or exit button 4 allows a passerby to enter the closed space 22 by turning the revolving door 5 a quarter turn by pressing this button.

The revolving door 5 has a central shaft 51 whose upper and lower ends are pivotally supported, and four wings 52 which are arranged radially in four directions from the central shaft 51 and formed by combining rod-shaped arms into a frame structure. 52, and a lock operating portion 53 attached to the upper end of the central shaft 51. The wing 52 is formed by providing rod-shaped arms in a stepped manner so that the revolving doors 5, 5 attached thereto do not come into contact with each other. Therefore, the plurality of revolving doors 5, 5 have respective wings 52, 52.
The openings 21 are rotated by intersecting each other in a stepped manner, and this intersecting area O allows the width of the opening 21 to be narrowed.

The lock operating portion 53 includes an inner electromagnetic lock 53 that prevents the center shaft 51 from rotating in the entry direction.
a, and an exit electromagnetic lock 53b that prevents the center shaft 51 from rotating in the exit direction.

The ID discriminator 6 includes a weight discriminator 61 that measures the weight of a passerby in the incoming direction or outgoing direction to determine whether it is appropriate to pass, and a card discriminating means 62 that determines whether it is appropriate to pass based on the contents of the card. configured.

The weight determination means 61 is attached to the floor surface of areas A and C of the entrance/exit 2 outside the closed space 22,
Each pressure sensor 61a in the incoming direction or outgoing direction measures the weight of a passerby in the incoming direction or outgoing direction;
61a', a pressure sensor memory 61b in which the weight of a person permitted to pass is registered and stored in advance, and the data of the pressure sensor memory 61b and each output of the pressure sensors 61a and 61a' in the incoming direction or outgoing direction. and comparators 61c and 61c' for comparing the two. The comparators 61c and 61c' output respective pressure comparison signals S ₉ and S ₉ ' in the entry direction or the exit direction to the door control circuit 7 if the weight of the passerby is within the permissible range.

The card discriminating means 62 includes the closed space section 2
A card reader 62a is attached to the inner wall of the opening 21 in the opening 2 and reads the card contents, and a card memory 62 stores the card number of the person who is permitted to pass.
b, and a coincidence detector 62c that detects coincidence between the data in the card memory 62b and the reading result of the card reader 62a. The coincidence detector 62c outputs a card coincidence signal _S3 to the door control circuit 7 when the passerby's card and the data in the card memory 62b match.

The door control circuit 7 includes an entry door control circuit 71 that controls the revolving door 5 regarding the entry direction when the entry button 3 is pressed, and an entry door control circuit 71 that controls the exit direction when the exit button 4 is pressed. and an exit door control circuit 72 that controls the revolving door 5.

The lock control circuit 8 receives an entry direction unlock signal S ₆
and an inner lock circuit 81 that sends an unlock signal _S8 to the inner electromagnetic lock 53a based on the door open signal _S2 .
and an outer lock circuit 82 which sends an unlock signal S ₈ ' to the outer electromagnetic lock 53b based on the outbound unlock signal S ₆ ' and the door open signal S ₂ . In addition, each of the above-mentioned inner and outer lock circuits 8
1 and 82 both stop sending out the release signals S ₈ and S ₈ ' when the door close signal S ₇ is input, and lock the revolving door 5.

The above-mentioned traffic display circuit 9 uses an OR circuit 91 to obtain the logical sum condition of the incoming direction use signal S ₅ ' and the outgoing direction use signal S ₅ of the door control circuit 7.
It is configured to light up the respective traffic indicator lights 92 and 93 at the entrance and exit.

Next, the operation of this embodiment will be explained in detail. first,
When a passerby enters the specific monitoring area 1, when the passerby presses an entry button 3 provided outside the entrance/exit 2, a button signal _S1 is sent out. Further, when a passerby is located in area A of the revolving door 5, the entrance direction pressure sensor 61a measures the weight of the passerby, and if the measured value is within the allowable range, sends an entry direction pressure comparison signal _S9 . In addition, if the above-mentioned measured value is a value outside the permissible range, the entry direction pressure comparison signal _S9 is not sent out, and the revolving door 5 is locked, thereby preventing passersby from entering the revolving door 5 at all. be able to.

The set signal is an output signal that is output when the logical product condition of the AND circuit 720 to which the above-mentioned incoming direction pressure comparison signal S ₉ , the above-mentioned button signal S ₁ and outgoing direction usage signal S ₅ are satisfied, is inputted. The signal is input to the RS flip-flop 711 to set it in the set state. The RS flip-flop 711 in the above-mentioned set state outputs an output signal Sq ₁ to cause the timer 712 to start integration, and the one-shot multivibrator (hereinafter referred to as OM) OM ₁
Outputs an output signal for 5 seconds to generate an entry direction unlock signal.
S ₆ is sent out (as shown in Figure 3), and the OR circuit 718 is entered to send out the direction use signal S ₅ ', which lights up the traffic indicators 92 and 93 at both the entrance and exit (as shown in Figure 6). show).

_The entering direction unlocking signal _S6 is inputted to _OM7 of the lock control circuit 8 as shown in FIG.
Input the unlock signal _S8 to the inner electromagnetic lock 53a,
The inner electromagnetic lock 53a is energized and pushes up the pin that had locked the revolving door 5, making it unlocked. The revolving door 5 in the unlocked state is pushed around by a passerby, and when the rotation becomes 1/8 rotation, that is,
When the bar 54 of the revolving door 5 rotates to the left and reaches above the card reader 61a, the rotation detection sensor 5
This is detected at step 5 and a door open signal _S2 is sent.

Note that if the passerby does not push the unlocked revolving door 5 around even after 5 seconds have passed since the timer 712 starts counting, and the rotation detection sensor 55 does not send out the door open signal _S2 , the OM ₆ , an output signal is sent out for 10 m seconds, and this output signal is inputted as a reset signal to the RS flip-flop 711, which returns to the reset state and returns to the initial state.

When the door open signal _S2 is sent out, the AND circuit 7
Since 13 satisfies the AND condition, it is input to the RS flip-flop 716 as a set signal,
At the same time, OM ₇ goes into the reset state and OM ₈ goes into the set state (as shown in FIG. 5).

When the OM ₇ is reset, the inner electromagnetic lock 53a is demagnetized and the pin is pushed down to lock. The revolving door 2 now rotates 1/4 of a turn, allowing the passerby to enter the closed space 22, and cannot rotate any further. When the OM ₈ shown in FIG. 5 is in the set state, the outer electromagnetic lock 53b is energized and the pin that was locking the revolving door 2 is pushed up to the unlocked state, and the rotating bar 54 is in the closed state. When the door passes by, the rotation detection sensor 56 detects this and sends out a door close signal _S7 .

The door close signal _S7 is input to _OM8 , and by setting it to the reset state, the outer electromagnetic lock 5 is activated.
The pin that demagnetizes the revolving door 3b and locks the revolving door 5 is lowered to become locked.

When a passerby entering the closed space 22 inserts a card into the card reader 62a of the card discriminating means 62 and a match is detected, a card matching signal _S3 is sent from the card discriminating means 62 to the door control circuit. 7
is input. The card match signal S ₃ and the output signal Sq ₂ of the RS flip-flop 716 are input to an AND circuit 714, and the RS flip-flop 717 is inputted on the condition that the logical product condition is satisfied.
A set signal is sent to the set state. this
The RS flip-flop 717 outputs an output signal Sq ₃ , and this output signal Sq ₃ is input to the OM ₂ , which outputs the output for 5 seconds and causes the entry direction unlocking signal S ₆ to be sent again (as shown in FIG. 3). By causing the OM ₇ to output for 5 seconds, the inner electromagnetic lock 53a is energized, and the pin locking the revolving door 5 is pushed up inward to the unlocked state (as shown in FIG. 5). A passerby can exit the closed space 22 and enter the specific monitoring area 1 by pushing the unlocked revolving door 5 a further 1/4 turn.

When the revolving door 5 rotates 1/8 in the middle of a 1/4 rotation, the rotation detection sensor 55 detects the passage of the bar 54 and sends out a door open signal _S2 .
_S2 resets the OM ₇ , demagnetizes the inner electromagnetic lock 53a, and pushes down the pin that fixes the revolving door 5. Furthermore, the door open signal _S2 is input to the AND circuit 720, and since it satisfies this logical product condition, the _OM3 is made to send out an output signal for 10 m seconds, and each RS flip-flop 711, 716,
717 is placed in a reset state. When these RS flip-flops 711, 716, and 717 enter the reset state, the output signals Sq ₁ , Sq ₂ , and Sq ₃ outputted from these respectively stop outputting and no longer satisfy the logical sum condition of the OR circuit 718. Therefore, the incoming direction use signal S ₅ ' is no longer sent out, and the traffic indicator lights 92 and 93 at the entrance and exit are turned off. Furthermore, the door opening signal _S2 causes the OM ₈ to be in the set state, thereby sending out an output signal for 5 seconds, energizing the outer electromagnetic lock 53b and pushing up the pin.

Next, when the revolving door 5 changes from 1/8 rotation to 1/4 rotation, the rotation detection sensor 56 detects the passage of the bar 54 and sends out a door close signal _S7 to reset the OM ₈ . As a result, the outer electromagnetic lock 53b is demagnetized, the pin is pushed down, and the revolving door 5 is locked outward and returned to its original state.

Note that when a passerby is inside the closed space 22 and wants to return for some reason, or the outputs of the weight determining means 61 and the card determining means 62 do not satisfy the logical product condition, the ID matching signal S is sent. ₃ is not sent out, the passerby presses the return button 64, and the return button signal _S4 is input from the return button 64 to the AND circuit 719. This AND circuit 719 is connected to the return button signal
S ₄ and the output signal Sq ₂ of the RS flip-flop 716
and the inverted output signal of the output signal Sq ₃ outputted from the RS flip-flop 717, satisfying the AND condition and sending the output signal to OM ₄ and OM ₅ .

OM ₅ , which has received this output signal, sends an outgoing unlock signal _S6 ' for 5 seconds, and then outputs the outgoing unlock signal S6'.
When S ₆ ' is input to OM ₇ , the outer electromagnetic lock 53
b is energized and the pin that locks the revolving door 5 outward is pushed up, allowing the passerby who was inside the closed space 22 to rotate the revolving door 5 and return to the outside.

When the revolving door 5 rotates by 1/8, the rotation detection sensor 55 detects the rotation and sends out a door open signal _S2 , which resets the OM ₇ and demagnetizes the outer electromagnetic lock 53b. The revolving door 5 is locked outward again, and the OM ₈ is set to excite the inner electromagnetic lock 53a to unlock the revolving door 5 inward. When a passerby further rotates the revolving door 5 to 1/4 rotation, the rotation detection sensor 56 detects the passage of the bar 54 and sends out a door close signal _S7 . This door close signal S ₇
is input as a reset signal to the OM ₈ , and the inner electromagnetic lock 53a is demagnetized, so that the revolving door 5 is locked outward again and returned to its original state.

The above OM ₄ inputs the output signal for 5 seconds to the AND circuit 715 in the same manner as the operation of the above-mentioned OM ₅ , and since the AND circuit 715 also receives the door open signal S ₂ at the same time, it satisfies the AND condition. This output signal sends out an output signal to each RS flip-flop 7.
11, 716 into the reset state, the entrance and exit traffic indicator lights 92, 93 are turned off and returned to their original state.

In the above description of the operation, the case where a passerby enters the specific monitoring area 1 from the outside has been explained, but the same procedure and operation are performed when the passerby goes outside. In addition, in the above explanation, Figure 1a
Although the case where the right revolving door 5 is used has been described, the same operation is performed even when the left revolving door 5 is used or both the left and right revolving doors 5, 5 are used.

In addition to the above embodiments, the present invention can also be implemented as follows.

(1) Revolving doors may be installed individually instead of in pairs.

(2) Areas A, I, and C in Figure 1 a were used for both the incoming and outgoing directions; for example, areas A, A, and U were used for the incoming direction, and areas U, E, and A were used for the outgoing direction. You may also use In this case, it is necessary to install an ID discriminator (discrimination device such as a card reader or pressure sensor) in area (d). Also, in this case, although a large amount of door space is required, it is possible to freely select the door and pass through freely.

(3) When the spaces A, B, C, and E in Figure 1a are constructed as spaces in which only one person can enter, the pressure sensor may be omitted.

(4) For the structure of the revolving door, in addition to the horizontal beam type wings shown in Figure 1a, wings of any structure, such as plate-shaped or lattice-shaped, may be used.

(5) The number of wings on the revolving door may be any number other than four on the central axis.

(6) The revolving door may be configured to be divided into dedicated doors for entry and exit.

(7) Proximity switches such as photoelectric devices may be used in place of the on and off buttons.

(8) It may be configured so that a visual or auditory display is provided each time a decision is made regarding permission to pass.

(9) The ID determination method may be configured to use a pressure sensor, a card reader, a numeric keypad, or a voiceprint, handprint, palmprint, face shape, or other recognition device alone or in any combination thereof. Furthermore, any device may be used as long as it is capable of ID discrimination.

(10) Install an ITV and intercom on both sides or one side of the revolving door to communicate with the monitoring center and
It is also possible to configure the monitoring center to be provided with a pass permission button so that the vehicle can pass even if the discriminator does not output a matching signal.

(11) It may also be configured to perform weight determination in area A of the revolving door.

(12) It may be configured such that when a person is present in area A of the closed space, it is detected that a person is present in area A, and the display is displayed so that the person exits from area A.

(13) The traffic indicator light when the vehicle is passing may be any display such as 〇/×, "Incoming traffic", "Exiting traffic", etc., or may be configured to notify by voice such as an announcement.

(14) In the event of a power outage, the electromagnetic lock may be set in the unlocking direction.

(15) If the revolving door stops at an intermediate position,
It may be possible to return it to the normal position electrically.

(16) The revolving door itself may be operated electrically.

(17) The wall surface in contact with the revolving door may also have a structure such as a bar or a lattice, or it may be formed integrally with the door.

〔Effect of the invention〕

As explained above, the present invention provides a revolving door having a plurality of wings arranged radially from a central axis at an entrance/exit, and performs ID discrimination in a closed space formed by the plurality of wings. Since the structure is configured to control the rotation of the revolving door based on the result of ID discrimination and control the passage through the entrance/exit, an outsider can take advantage of the person who is allowed to pass through the single door and door control device. Intrusion can be reliably prevented, and the door control mechanism is simple and the overall structure can be easily configured. It also has the effect of reducing the installation space.

[Brief explanation of drawings]

FIG. 1a is a front view of a traffic control door according to an embodiment of the present invention, FIG. 1b is a sectional view taken along line A-A in FIG. 1a,
Fig. 1c is an installation diagram of the electromagnetic lock of the revolving door shown in Fig. 1a, Fig. 1d is a sectional view taken along line B-B in Fig. 1c, Fig. 2 is an overall block diagram of this embodiment, and Fig. 3 The figure is a circuit diagram of the door control circuit in the entry direction (or exit direction),
FIG. 4 shows a circuit diagram of the ID discriminator, FIG. 5 shows a circuit diagram of the lock control circuit, and FIG. 6 shows a circuit diagram of the traffic display circuit. 1... Specific surveillance area, 2... Entrance/exit, 3... Entry button, 4... Exit button, 5... Revolving door, 6...
ID discriminator, 7... Door control circuit, 8... Lock control circuit, 9... Traffic display circuit, 22... Closed space section, 51... Central axis, 52... Wing, 64...
Return button.

Claims (1)

[Scope of Claims] 1. A traffic control door provided at an entrance/exit of a specific monitoring area to control traffic at the entrance/exit, comprising: a revolving door having a plurality of wings arranged radially from a central axis; a first ID discriminating device comprising at least one type of ID discriminating means installed in a closed space formed by the wing of the door and the inner wall of the opening of the entrance; a second ID discriminator comprising at least one type of ID discriminator; and a door control device that controls the rotation of the revolving door based on the discrimination results of the first and second ID discriminators. A traffic control door comprising: a traffic control door for controlling traffic through the entrance/exit by controlling rotation of the revolving door. 2. Claim 1, characterized in that a return button is provided in the closed space formed by the plurality of wings and the inner wall of the opening of the entrance/exit, and the door control device is brought into a released state by the return button. traffic control door. 3. The traffic control door according to claim 1 or 2, wherein the first ID discriminating device is configured to be used in common for both incoming and outgoing traffic.